1,240 farms mapped in 60 days , in San Pedro.

A full-stack drone · RTK GPS · Sentinel-2 mission delivered for a sustainable-cocoa program led by an international NGO, meeting EUDR parcel-level traceability requirements.

◇ The context

Mapping every plot to satisfy a demanding donor.

Our NGO partner runs a sustainable-cocoa program across 18 cooperatives near San Pedro. The international donor required, within 90 days, a parcel-level georeferenced database — every farm located at the sub-plot, cross-referenced with historical forest cover, and accessible online for field teams.

Traditional methods (consumer GPS, paper surveys) could deliver neither the sub-metric accuracy needed for the audit nor the pace set by the donor's calendar. DEC was selected after a 48-hour field demonstration.

◇ Methodology · 60 days

Four phases. One weekly deliverable.

5 d

Framing

Workshop with the NGO + 3 cooperative reps. Attribute schema, validation sample, logistics plan for the 9 zones.

28 d

Field collection

9 paired teams equipped with Trimble R12i, perimeter + centroid for each farm. Mavic 3M drone flights on 22 target zones for validation.

18 d

Processing & overlay

PostGIS cleanup, Sentinel-2 2019-2024 overlay via Google Earth Engine, supervised cover-loss classification, A0 map production.

9 d

Delivery & training

WebGIS deployment, 3-day training for cooperative operators + NGO GIS team, 84-page donor report with methodological annexes.

◇ Key figures

1,240

Farms mapped

248 ha

Forest losses located

Cooperatives tracked

60 d

From signature to WebGIS

◇ Deliverables

What the NGO received.

01

PostGIS database of 1,240 farms, sub-metric georeferencing verified on an 8% sample.
02

Secured WebGIS (auth · roles) with layers: perimeters, centroids, cooperatives, forest losses, priority agroforestry zones.
03

Sentinel-2 2019-2024 overlay: parcel-level cover-loss map with severity classes.
04

12 printable A0 thematic maps (density, ownership, risk, agroforestry).
05

84-page donor report + methodological annexes and validation tables.
06

3-day training for 14 cooperative operators and 4 NGO GIS officers.

◇ Technical stack mobilized

Trimble R12i RTK DJI Mavic 3 Multispectral Pix4Dmapper Sentinel-2 · Google Earth Engine PostgreSQL + PostGIS GeoServer Mapbox GL JS React · TypeScript

Operational outcomes

Beyond the map.

Plot → cooperative → export traceability, compliant with EUDR requirements.
Early detection of 12 forest-encroachment zones previously undocumented in the program.
Targeted agroforestry plan for the 248 ha at risk, submitted to the donor as a report annex.
Donor audit passed without major reservation; phase 2 funding confirmed.

« The sub-metric accuracy and delivery pace let us hold the donor audit calendar. The WebGIS is used daily by our field teams — not just one more deliverable gathering dust in a drawer. »

Sustainable-cocoa program coordinator

International NGO · name shared with donor agreement

◇ A similar project?

Free 30-minute diagnostic.

Technical exchange, demo on a case from your sector, quote within 48h.

Request a slot See our expertise

All case studies